US director of the National Economic Council Gary Cohn is resigning, the White House has confirmed.
Cohn was also President Donald Trump’s top economic adviser. His exit is the latest in a series of high-profile departures from President Trump’s team.
There has been speculation that Mr Cohn, a supporter of free trade, was angered by Mr Trump’s plans to impose tariffs on aluminium and steel imports.
In a statement released by the White House, Mr Cohn said it had been “an honour to serve my country”.
The 57-year-old former president of the Goldman Sachs bank helped Mr Trump push through his sweeping tax reforms late last year.
However, the two were not believed to be close.
In August 2017, Mr Cohn criticised Mr Trump over his reaction to a far-right rally in Charlottesville, Virginia, saying the administration “can and must do better”.
He was reported to have drafted a resignation letter after the event.
“It has been an honour to serve my country and enact pro-growth economic policies to benefit the American people, in particular the passage of historic tax reform,” Mr Cohn said in his statement.
“I am grateful to the president for giving me this opportunity and wish him and the administration great success in the future.”
The White House said Mr Cohn’s exact departure date had yet to be determined.
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“For several weeks Gary had been discussing with the president that it was nearing time for him to transition out,” an official said.
In a statement, Mr Trump described his outgoing economics adviser as “a rare talent”.
“Gary… did a superb job in driving our agenda, helping to deliver historic tax cuts and reforms and unleashing the American economy once again,” he said .
“He is a rare talent and I thank him for his dedicated service to the American people.”
Mr Trump later tweeted that he would pick Mr Cohn’s replacement “soon”.
“Many people wanting the job – will choose wisely!” he added.
Possible candidates mooted by US media include White House adviser Peter Navarro and Larry Kudlow, a conservative commentator and 2016 campaign adviser.
Earlier on Tuesday, President Trump tweeted that there was no chaos at the White House but there were “still… some people that I want to change”.
The new Fake News narrative is that there is CHAOS in the White House. Wrong! People will always come & go, and I want strong dialogue before making a final decision. I still have some people that I want to change (always seeking perfection). There is no Chaos, only great Energy!
— Donald J. Trump (@realDonaldTrump) March 6, 2018
The White House has seen a string of senior figures leave since Mr Trump took office.
Last week, one of his closest aides, Hope Hicks, resigned. She was the fourth person to have served as the president’s communications chief.
It came a day after she had testified in front of the House Intelligence Committee investigating possible Trump campaign ties to Russia, but White House sources said this was not the reason.
